Timing events in javascript based on frames per second

Question

Timing events in javascript based on frames per second

Currently, I am working on a mini-game that requires some animations to be implemented in the form of frames per second. Here is my current approach:

var loadCount = 0;
var ticks = 15;


function loadingLoop() {
    loadCount++;
}

switch (loadCount) {
    case 1:
        $("#img").attr("src", "src/images/cenario/img004.png");
        break;
    case 2:
        $("#img").attr("src", "src/images/cenario/img005.png");
        break;
    case 3:
        $("#img").attr("src", "src/images/cenario/img006.png");
        break;
    // etc.... //
}

setInterval(function(){ 
    if (loadCount >= 6 && loadCount <= ticks){
        loadingLoop();
        if (loadCount === ticks) {
            clearInterval();
        }
        console.log(loadCount);
    }
}, 500);

I am interested in exploring more efficient ways to achieve the same goal. Any suggestions or recommendations would be greatly appreciated.

javascript html jquery css

Answer 1

Answer №1

One way to optimize the code for image numbering is by utilizing the connection between the image load count and the naming convention. Instead of using a long switch statement, you can simplify it with the following code snippet:

$("#img").attr("src", "src/images/cenario/img" + (loadCount+3).toString().padStart(3, '0') + ".png");

The padStart method adds padding to the beginning of a string representation of a number. In this case, we are adding zeros to ensure a three-digit number.

In the timing function, one improvement could be saving the setInterval reference before attempting to clear it. Consider revising the code as follows:

let interval = setInterval(function(){ 
    if (loadCount >= 6 && loadCount <= ticks){
        loadingLoop();
        if (loadCount === ticks) {
            clearInterval(interval);
        }
        console.log(loadCount);
    }

}, 500);

Answer 2

One way to optimize the code for image numbering is by utilizing the connection between the image load count and the naming convention. Instead of using a long switch statement, you can simplify it with the following code snippet:

$("#img").attr("src", "src/images/cenario/img" + (loadCount+3).toString().padStart(3, '0') + ".png");

The padStart method adds padding to the beginning of a string representation of a number. In this case, we are adding zeros to ensure a three-digit number.

In the timing function, one improvement could be saving the setInterval reference before attempting to clear it. Consider revising the code as follows:

let interval = setInterval(function(){ 
    if (loadCount >= 6 && loadCount <= ticks){
        loadingLoop();
        if (loadCount === ticks) {
            clearInterval(interval);
        }
        console.log(loadCount);
    }

}, 500);

Timing events in javascript based on frames per second

Answer №1

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